title: Feasibility study on development of Cerenkov fiber-optic dosimeter for radiotherapy application.
abstract: To obtain real-time dose information in photon-beam therapy using a clinical linear accelerator, we fabricated a novel Cerenkov fiber-optic dosimeter using two plastic optical fibers without employing a scintillator. In this study, the light intensity and spectrum of Cerenkov radiation induced by a high-energy photon beam were measured as functions of the irradiation angle and the length difference between the two plastic optical fibers in the dosimeter probe. Also, we obtained a percentage depth dose curve for a 6 MV photon beam with a field size of 10 × 10 cm(2) according to the depth of the solid water phantom. Based on the results of this study, it is anticipated that the proposed Cerenkov fiber-optic dosimeter can be developed as a useful dosimeter to accurately obtain dose information prior to conducting radiotherapy.
authors.forename: W J
authors.initials: WJ
authors.lastname: Yoo
authors.forename: S H
authors.initials: SH
authors.lastname: Shin
authors.forename: K-T
authors.initials: KT
authors.lastname: Han
authors.forename: D
authors.initials: D
authors.lastname: Jeon
authors.forename: S
authors.initials: S
authors.lastname: Hong
authors.forename: S G
authors.initials: SG
authors.lastname: Kim
authors.forename: H I
authors.initials: HI
authors.lastname: Sim
authors.forename: K W
authors.initials: KW
authors.lastname: Jang
authors.forename: S
authors.initials: S
authors.lastname: Cho
authors.forename: B G
authors.initials: BG
authors.lastname: Park
authors.forename: B
authors.initials: B
authors.lastname: Lee
mesh_terms: D005240:Feasibility Studies; D005336:Fiber Optic Technology; D006801:Humans; D055100:Optical Fibers; D019047:Phantoms, Imaging; D011874:Radiometry / Q000295:instrumentation; D011878:Radiotherapy / Q000295:instrumentation*